A compact Asymmetric coplanar strip (ACS) fed
modified Koch fractal shape printed slot antenna. It suitable for Wireless, WiMax, WiBro and other important frequencies, is presented in this paper. Here, the operating frequencies of the
triangle slot antenna are lowered by the Koch iteration technique resulting in compact antenna. The proposed antenna exhibits wideband frequency resonance. The simulated -10 dB bandwidth
for this resonant frequency is 97.7 % ranging from 2.7 GHz to 7.88 GHz. The antenna is exhibits omnidirectional radiation pattern with < 3 dBi gain for entire bandwidth is presented. Also
comparison of different antenna parameters are presented and discussed in this paper.